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$448+ Cheap flights from Porto (OPO) to Las Vegas (LAS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — LAS
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
1 adult, Economy
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1. Tell us where you want to go

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2. Select your favorite providers

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Find flight deals from Porto to Las Vegas

Cheapest flights from Porto to Las Vegas
Explore the most affordable flight options available from Porto to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 13, 2025.

This Rumbo deal was found by Cheapflights users on 11/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/258:50 amOPO - LAS
1 stop21h 12mAir Transat
Thu 1/811:05 pmLAS - OPO
1 stop24h 00mAir Transat
Deal found 11/13$649
This Kiwi.com deal was found by Cheapflights users on 11/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/258:50 amOPO - LAS
1 stop21h 12mMultiple Airlines
Thu 1/811:05 pmLAS - OPO
2 stops28h 45mMultiple Airlines
Deal found 11/13$775
This United Airlines deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2012:35 pmOPO - LAS
2 stops18h 40mUnited Airlines
Wed 12/31:50 pmLAS - OPO
1 stop17h 35mUnited Airlines
Deal found 11/11$881
This Delta deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/206:35 amOPO - LAS
2 stops21h 12mDelta
Wed 12/37:25 amLAS - OPO
2 stops19h 05mDelta
Deal found 11/11$883
This KLM deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/286:30 amOPO - LAS
2 stops21h 17mMultiple Airlines
Tue 12/29:53 amLAS - OPO
2 stops16h 37mMultiple Airlines
Deal found 11/12$884
This United Airlines deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/212:30 pmOPO - LAS
1 stop31h 35mUnited Airlines
Wed 12/241:50 pmLAS - OPO
1 stop17h 35mUnited Airlines
Deal found 11/12$889
This Delta deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/286:30 amOPO - LAS
2 stops21h 17mDelta
Tue 12/24:05 pmLAS - OPO
1 stop15h 20mDelta
Deal found 11/12$890
This United Airlines deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/46:00 amOPO - LAS
2 stops22h 10mUnited Airlines
Wed 12/241:50 pmLAS - OPO
1 stop17h 35mUnited Airlines
Deal found 11/12$892
This United Airlines deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:30 pmOPO - LAS
2 stops53h 10mUnited Airlines
Wed 12/241:50 pmLAS - OPO
1 stop17h 35mUnited Airlines
Deal found 11/12$894
This American Airlines deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/208:20 amOPO - LAS
2 stops32h 55mAmerican Airlines
Wed 12/311:59 pmLAS - OPO
2 stops23h 41mAmerican Airlines
Deal found 11/12$911

Cheap flight deals from Porto to Las Vegas

Discover tips and strategies to find the most affordable flight options for your journey from Porto (OPO) to Las Vegas (LAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 13, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$563
(Rumbo)

One-way from

$448
(Kiwi.com)

Popular in

November

Cheapest in

February

Average price

$1,435
Provider with most accurate pricing for Porto-Las Vegas Harry Reid Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Porto-Las Vegas Harry Reid Intl flights.
Search Deals
From Porto to Las Vegas Harry Reid Intl
Search Deals
One-way flight from Porto to Las Vegas Harry Reid Intl
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($113 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($43 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Porto to Las Vegas that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 13, 2025.
Use the filters below to find and compare flights from Porto to Las Vegas that are best for you.

Fly from

Porto

Fly to

Las Vegas

Route

Depart

Return

Price

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Wed 2/4

8:20 am-11:28 pm

3 stops47h 08m

Las Vegas Harry Reid Intl

Sat 2/7

7:35 pm-12:50 pm

2 stops33h 15m

$748

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 5/4

1:30 pm-8:50 am

1 stop27h 20m

Las Vegas Harry Reid Intl

Wed 5/13

9:55 am-11:45 am

1 stop17h 50m

$817

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Fri 2/13

6:00 am-5:15 pm

2 stops19h 15m

Las Vegas Harry Reid Intl

Thu 2/19

6:22 pm-11:40 pm

2 stops21h 18m

$858

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Fri 3/13

12:35 pm-10:02 pm

1 stop16h 27m

Las Vegas Harry Reid Intl

Mon 3/16

10:41 am-9:30 am

2 stops15h 49m

$879

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 3/9

12:35 pm-10:02 pm

1 stop16h 27m

Las Vegas Harry Reid Intl

Tue 3/17

10:52 am-9:30 am

2 stops15h 38m

$879

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 5/4

5:00 am-7:12 pm

2 stops22h 12m

Las Vegas Harry Reid Intl

Wed 5/13

5:50 pm-3:30 pm

1 stop13h 40m

$882

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 2/12

6:35 am-2:15 pm

1 stop15h 40m

Las Vegas Harry Reid Intl

Sat 2/28

4:05 pm-10:25 pm

1 stop22h 20m

$883

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Fri 11/28

6:30 am-7:47 pm

2 stops21h 17m

Las Vegas Harry Reid Intl

Tue 12/2

9:53 am-10:30 am

2 stops16h 37m

$884

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Sat 1/10

6:20 am-9:45 am

3 stops35h 25m

$448

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 1/1

6:10 am-9:52 pm

3 stops47h 42m

$731

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/11

Showing 1-10 of 11 results
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Compare providers for flights from Porto to Las Vegas

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Porto to Las Vegas in November.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
Trip.comPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Porto-Las Vegas flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Porto-Las Vegas flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Porto-Las Vegas flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Porto-Las Vegas flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Porto-Las Vegas flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Porto to Las Vegas

Have a flexible travel schedule? Discover the best time to fly to Las Vegas from Porto with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Porto to Las Vegas

What is the cheapest month to book a flight from Porto to Las Vegas?

Currently, February is the cheapest month in which you can book a flight from Porto to Las Vegas (average of $513). Flying from Porto to Las Vegas in November is currently the most expensive (average of $1,406). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Porto to Las Vegas. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Porto to Las Vegas?

    Airlines like Air Transat, Lufthansa, and United Airlines fly from Porto to Las Vegas in about 16h 27m. The time it takes to get you to your destination can typically vary by up to 10h 53m. There are 5352 mi between Porto and Las Vegas. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Porto to Las Vegas that include hotel bookings?

    Yes. In addition to deals on Porto to Las Vegas flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Porto to Las Vegas?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Porto to Las Vegas.

  • Can I find deals for business class flights from Porto to Las Vegas?

    Yes. Cheapflights offers flight deals from Porto to Las Vegas by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Porto to Las Vegas?

    Currently, February is the cheapest month in which you can book a flight from Porto to Las Vegas (average of $513). Flying from Porto to Las Vegas in November is currently the most expensive (average of $1,406). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Las Vegas?

Book flights to Las Vegas if you plan to visit one of these locations
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Henderson
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Primm
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